17:42:25 Enable Cell Caching using MemoryGZip method<br />17:42:25 Create new PHPExcel object<br />17:42:25 Set properties<br />17:42:25 Add data<br />17:42:25 Hide 'Phone' and 'fax' columns<br />17:42:25 Set outline levels<br />17:42:25 Freeze panes<br />17:42:25 Rows to repeat at top<br />17:42:26 Write to Excel2007 format<br />17:42:30 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 3.8564 seconds<br />17:42:30 Current memory usage: 28 MB<br />17:42:30 Peak memory usage: 31.25 MB<br />17:42:30 Done writing file<br />File has been created in D:\wwwroot\yx\base_admin_welcome_new_student\vendor\phpoffice\phpexcel\Examples<br />